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https://www.readbyqxmd.com/read/28335433/evaluation-and-adaptation-of-a-laboratory-based-cdna-library-preparation-protocol-for-retrospective-sequencing-of-archived-micrornas-from-up-to-35-year-old-clinical-ffpe-specimens
#1
Olivier Loudig, Tao Wang, Kenny Ye, Juan Lin, Yihong Wang, Andrew Ramnauth, Christina Liu, Azadeh Stark, Dhananjay Chitale, Robert Greenlee, Deborah Multerer, Stacey Honda, Yihe Daida, Heather Spencer Feigelson, Andrew Glass, Fergus J Couch, Thomas Rohan, Iddo Z Ben-Dov
Formalin-fixed paraffin-embedded (FFPE) specimens, when used in conjunction with patient clinical data history, represent an invaluable resource for molecular studies of cancer. Even though nucleic acids extracted from archived FFPE tissues are degraded, their molecular analysis has become possible. In this study, we optimized a laboratory-based next-generation sequencing barcoded cDNA library preparation protocol for analysis of small RNAs recovered from archived FFPE tissues. Using matched fresh and FFPE specimens, we evaluated the robustness and reproducibility of our optimized approach, as well as its applicability to archived clinical specimens stored for up to 35 years...
March 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28320379/mirnas-associated-with-prostate-cancer-risk-and-progression
#2
REVIEW
Hung N Luu, Hui-Yi Lin, Karina Dalsgaard Sørensen, Olorunseun O Ogunwobi, Nagi Kumar, Ganna Chornokur, Catherine Phelan, Dominique Jones, LaCreis Kidd, Jyotsna Batra, Kosj Yamoah, Anders Berglund, Robert J Rounbehler, Mihi Yang, Sang Haak Lee, Nahyeon Kang, Seung Joon Kim, Jong Y Park, Giuliano Di Pietro
Prostate cancer is the most common malignancy among men in the US. Though considerable improvement in the diagnosis of prostate cancer has been achieved in the past decade, predicting disease outcome remains a major clinical challenge. Recent expression profiling studies in prostate cancer suggest microRNAs (miRNAs) may serve as potential biomarkers for prostate cancer risk and disease progression. miRNAs comprise a large family of about 22-nucleotide-long non-protein coding RNAs, regulate gene expression post-transcriptionally and participate in the regulation of numerous cellular processes...
March 20, 2017: BMC Urology
https://www.readbyqxmd.com/read/28319200/induction-of-immunomodulatory-mir-146a-and-mir-155-in-small-intestinal-epithelium-of-vibrio-cholerae-infected-patients-at-acute-stage-of-cholera
#3
Aziz Bitar, Rituparna De, Silvia Melgar, Kyaw Min Aung, Arman Rahman, Firdausi Qadri, Sun Nyunt Wai, Tahmina Shirin, Marie-Louise Hammarström
The potential immunomodulatory role of microRNAs in small intestine of patients with acute watery diarrhea caused by Vibrio cholerae O1 or enterotoxigenic Escherichia coli (ETEC) infection was investigated. Duodenal biopsies were obtained from study-participants at the acute (day 2) and convalescent (day 21) stages of disease, and from healthy individuals. Levels of miR-146a, miR-155 and miR-375 and target gene (IRAK1, TRAF6, CARD10) and 11 cytokine mRNAs were determined by qRT-PCR. The cellular source of microRNAs in biopsies was analyzed by in situ hybridization...
2017: PloS One
https://www.readbyqxmd.com/read/28300567/9-cis-retinoic-acid-modulates-myotrophin-expression-and-its-mir-in-physiological-and-pathophysiological-cell-models
#4
Mariarita Perri, Maria Cristina Caroleo, Nannan Liu, Luca Gallelli, Giovambattista De Sarro, Hiroyuki Kagechika, Erika Cione
Functional studies indicate that essential cellular processes are controlled by Vitamin A derivatives. Among these the retinoic acid isoforms, all-trans- and 9-cis (9cRA), regulate the expression of various genes in both physiological and pathological conditions. Using several in vitro experimental models such as pancreatic β-cells, pre-adipocytes and breast cancer cells with different phenotypes, we demonstrated the capability of 9cRA to modulate myotrophin (Mtpn) and miR-375 expressions. The 9cRA effect in pancreatic β-cells line INS-1 832/13 point out a decreased expression of Mptn at both mRNA and protein levels associated to a concomitant increase of miR-375...
March 11, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28282880/astaxanthin-inhibits-pc-3-xenograft-prostate-tumor-growth-in-nude-mice
#5
Xiaofeng Ni, Haining Yu, Shanshan Wang, Chengcheng Zhang, Shengrong Shen
Prostate cancer (PCa), the most common malignancy in men, is a major cause of cancer deaths. A better understanding of the mechanisms that drive tumor initiation and progression may identify actionable targets to improve treatment of this patient group. As a dietary carotenoid, astaxanthin has been demonstrated to exert beneficial effects against inflammation, cardiovascular disease, oxidative damage, or different cancer sites. This study used intragastric administration of astaxanthin to detect its role on tumor proliferation, apoptosis, microRNA (miRNA) overexpression, and microbacteria composition change by establishing androgen-independent PCa cell PC-3 xenograft nude mice...
March 8, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28269750/micrornas-in-esophageal-squamous-cell-carcinoma-potential-biomarkers-and-therapeutic-targets
#6
Li-Li Mei, Yun-Tan Qiu, Bing Zhang, Zhi-Zhou Shi
Esophageal cancer is a common cause of cancer-related deaths worldwide. Squamous cell carcinoma (SCC) is the major histological type of esophageal cancer in developing countries including China, and the prognosis is very poor. Many microRNAs are involved in several important biological and pathologic processes, and promote tumorigenesis. To better understand the prognostic and therapeutic roles of microRNAs in ESCC, we reviewed the diagnosis and prognosis associated oncogenic microRNAs (e.g. miR-21 and miR-17-92 cluster) and tumor suppressor microRNAs (e...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28262546/promotion-effects-of-mir-375-on-the-osteogenic-differentiation-of-human-adipose-derived-mesenchymal-stem-cells
#7
Si Chen, Yunfei Zheng, Shan Zhang, Lingfei Jia, Yongsheng Zhou
MicroRNA plays an important role in bone tissue engineering; however, its role and function in osteogenic differentiation warrant further investigation. In this study, we demonstrated that miR-375 was upregulated during the osteogenic differentiation of human adipose-derived mesenchymal stem cells (hASCs). Overexpression of miR-375 significantly enhanced hASCs osteogenesis both in vitro and in vivo, while knockdown of miR-375 inhibited the osteogenic differentiation of hASCs. Mechanistically, microarray analysis revealed DEPTOR as a target of miR-375 in hASCs...
March 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28259929/expression-profiles-and-circulation-dynamics-of-rat-mesenteric-lymph-micrornas
#8
Wakako Sakamoto, Tomohiko Masuno, Hiroyuki Yokota, Toshihiro Takizawa
Mesenteric lymph is vital for immune cell trafficking and intestinal fluid and chyle transport, which aid homeostatic maintenance. There have been few reports investigating the profiles and circulatory dynamics of mesenteric lymph microRNAs (miRNAs). The present study aimed to provide a comprehensive analysis of miRNAs in normal rodent mesenteric lymph. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR)‑based array analysis was performed to examine the expression levels of 375 miRNAs in normal rat mesenteric lymph...
February 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28254488/the-small-rna-mir-375-a-pancreatic-islet-abundant-mirna-with-multiple-roles-in-endocrine-beta-cell-function
#9
Lena Eliasson
The pathophysiology of diabetes is complex and recent research put focus on the pancreatic islets of Langerhans and the insulin-secreting beta cells as central in the development of the disease. MicroRNAs (miRNAs), the small non-coding RNAs regulating post-transcriptional gene expression, are significant regulators of beta cell function. One of the most abundant miRNAs in the islets is miR-375. This review focus on the role of miR-375 in beta cell function, including effects in development and differentiation, proliferation and regulation of insulin secretion...
February 27, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28251902/evolutionarily-conserved-serum-micrornas-predict-radiation-induced-fatality-in-nonhuman-primates
#10
Wojciech Fendler, Beata Malachowska, Khyati Meghani, Panagiotis A Konstantinopoulos, Chandan Guha, Vijay K Singh, Dipanjan Chowdhury
Effective planning for the medical response to a radiological or nuclear accident is complex. Because of limited resources for medical countermeasures, the key would be to accurately triage and identify victims most likely to benefit from treatment. We used a mouse model system to provide evidence that serum microRNAs (miRNAs) may effectively predict the impact of radiation on the long-term viability of animals. We had previously used nonhuman primates (NHPs) to demonstrate that this concept is conserved and serum miRNA signatures have the potential to serve as prediction biomarkers for radiation-induced fatality in a human population...
March 1, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28239461/tissue-microrna-profiles-as-diagnostic-and-prognostic-biomarkers-in-patients-with-resectable-pancreatic-ductal-adenocarcinoma-and-periampullary-cancers
#11
Dan Calatayud, Christian Dehlendorff, Mogens K Boisen, Jane Preuss Hasselby, Nicolai Aagaard Schultz, Jens Werner, Heike Immervoll, Anders Molven, Carsten Palnæs Hansen, Julia S Johansen
BACKGROUND: The aim of this study was to validate previously described diagnostic and prognostic microRNA expression profiles in tissue samples from patients with pancreatic cancer and other periampullary cancers. METHODS: Expression of 46 selected microRNAs was studied in formalin-fixed paraffin-embedded tissue from patients with resected pancreatic ductal adenocarcinoma (n = 165), ampullary cancer (n=59), duodenal cancer (n = 6), distal common bile duct cancer (n = 21), and gastric cancer (n = 20); chronic pancreatitis (n = 39); and normal pancreas (n = 35)...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28219342/effects-of-exposure-to-streptococcus-iniae-on-microrna-expression-in-the-head-kidney-of-genetically-improved-farmed-tilapia-oreochromis-niloticus
#12
Jun Qiang, Fanyi Tao, Jie He, Lanyi Sun, Pao Xu, Wenjin Bao
BACKGROUND: Genetically improved farmed tilapia (GIFT, Oreochromis niloticus) are susceptible to infection by Streptococcus iniae when maintained in modern intensive culture systems. GIFT are commercially important fishes that are cultured widely in southern China. The role of microRNAs (miRNAs) in the regulatory response of GIFT to S. iniae infection has been underestimated and has not yet been well studied. Head kidney has an important immune function in teleost fishes. The main aim of this study was to determine the possible function of miRNAs in head kidney of S...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28214889/regulatory-role-of-mirna-375-in-expression-of-bmp15-gdf9-receptors-and-its-effect-on-proliferation-and-apoptosis-of-bovine-cumulus-cells
#13
Hongyan Chen, Chang Liu, Hao Jiang, Yan Gao, Mingqiang Xu, Jiawei Wang, Siyuan Liu, Yao Fu, Xulei Sun, Jiajun Xu, Jiabao Zhang, Lisheng Dai
BACKGROUND: Bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) are members of the transforming growth factor beta (TGF-β) superfamily. Through autocrine and paracrine mechanisms, these two factors can regulate cell differentiation, proliferation, and other functions in the ovary locally. Furthermore, GDF9 and BMP15 play vital roles in follicular growth, atresia, ovulation, fertilization, reproduction, and maintenance. Numerous studies have demonstrated a synergy between BMP15 and GDF9...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214218/implication-of-downregulation-and-prospective-pathway-signaling-of-microrna-375-in-lung-squamous-cell-carcinoma
#14
Wen-Jie Chen, Ting-Qing Gan, Hui Qin, Su-Ning Huang, Li-Hua Yang, Ye-Ying Fang, Zu-Yun Li, Lin-Jiang Pan, Gang Chen
BACKGROUND: Lung cancer is one of the most typical cancers in the world. Altered expression profiles of microRNA-375(miR-375) are linked to many diseases including lung cancer. However, the relationship between miR-375 and lung squamous cell carcinoma (LUSC) is controversial. METHODS: We first evaluated the 23 LUSCs and the paired normal lung tissues by qRT-PCR. Then we analyzed the LUSC samples with miR-375 expression based on The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO)...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28186962/microrna-375-inhibits-colorectal-cancer-cells-proliferation-by-downregulating-jak2-stat3-and-map3k8-erk-signaling-pathways
#15
Ran Wei, Qin Yang, Bing Han, Yan Li, Kun Yao, Xiuyu Yang, Zexi Chen, Shanshan Yang, Jiaqi Zhou, Meizhang Li, Haijing Yu, Min Yu, Qinghua Cui
MicroRNA-375 is involved in many types of alimentary system cancers. Our previous studies showed that microRNA-375 was significantly down-regulated in carcinoma tissues compared with para-carcinoma tissues, which strongly indicates that microRNA-375 might suppress the occurrence and development of colorectal cancer. However, the mechanism underlying the microRNA-375 regulation in colorectal cancer remains unclear. In this study, we first sorted out jak2, map3k8 and atg7 as microRNA-375 targeted genes from multiple databases, and found that jak2, map3k8 and their downstream genes stat3 and erk were up-regulated in carcinoma tissues...
February 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28164670/prognostic-value-of-expression-of-micrornas-in-non-small-cell-lung-cancer-a-systematic-review-and-meta-analysis
#16
Bingxiang Zhan, Dapeng Lu, Peng Luo, Baolong Wang
BACKGROUND: microRNAs are widely involved in a variety of life processes and considered as potential biomarkers of tumor prognosis. A growing number of studies have documented that miRNAs were associated with outcome in NSCLC patients and can act as a prognostic marker. However, existing studies concerning the relationship between miRNAs and outcome in NSCLC patients were contentious and dispersive. Therefore, a systematic metaanalysis to explore the prognostic value of miRNAs on NSCLC patients is urgently needed...
November 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28158288/mir-375-3p-negatively-regulates-osteogenesis-by-targeting-and-decreasing-the-expression-levels-of-lrp5-and-%C3%AE-catenin
#17
Tianhao Sun, Chen-Tian Li, Lifeng Xiong, Ziyu Ning, Frankie Leung, Songlin Peng, William W Lu
Wnt signaling pathways are essential for bone formation. Previous studies showed that Wnt signaling pathways were regulated by miR-375. Thus, we aim to explore whether miR-375 could affect osteogenesis. In the present study, we investigated the roles of miR-375 and its downstream targets. Firstly, we revealed that miR-375-3p negatively modulated osteogenesis by suppressing positive regulators of osteogenesis and promoting negative regulators of osteogenesis. In addition, the results of TUNEL cell apoptosis assay showed that miR-375-3p induced MC3T3-E1 cell apoptosis...
2017: PloS One
https://www.readbyqxmd.com/read/28122349/the-prognostic-relevance-of-primary-tumor-location-in-patients-undergoing-resection-for-pancreatic-ductal-adenocarcinoma
#18
Qi Ling, Xiao Xu, Panpan Ye, Haiyang Xie, Feng Gao, Qichao Hu, Zhikun Liu, Xuyong Wei, Christian Röder, Anna Trauzold, Holger Kalthoff, Shusen Zheng
Different clinical presentations and prognoses have been implied between pancreatic head and body/tail cancers. We aimed to identify the prognostic relevance of primary tumor location in patients undergoing resection for pancreatic ductal adenocarcinoma (PDAC). Thirty-two pairs of patients with strictly matched early stage (II) pancreatic head and body/tail cancers were enrolled. The molecular feature of the two subtypes of PDAC was assessed on the level of miRNA expression. Out of the 64 patients, 34 (53.1%) had tumor recurrence after radical resection during the follow-up period (2...
January 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28122254/an-alpha-beta-of-pancreatic-islet-microribonucleotides
#19
REVIEW
Louise Torp Dalgaard, Lena Eliasson
MicroRNAs (miRNAs) are cellular, short, non-coding ribonucleotides acting as endogenous posttranscriptional repressors following incorporation in the RNA-induced silencing complex. Despite being chemically and mechanistically very similar, miRNAs exert a multitude of different cellular effects by acting on mRNA species, whose gene-products partake in a wide array of processes. Here, the aim was to review the knowledge of miRNA expression and action in the islet of Langerhans. We have focused on: 1) physiological consequences of islet or beta cell specific inhibition of miRNA processing, 2) mechanisms regulating processing of miRNAs in islet cells, 3) presence and function of miRNAs in alpha versus beta cells - the two main cell types of islets, and 4) miRNA mediators of beta cell decompensation...
January 22, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28119452/microrna-375-is-induced-in-cisplatin-nephrotoxicity-to-repress-hepatocyte-nuclear-factor-1-beta
#20
Jielu Hao, Qiang Lou, Qingqing Wei, Shuqin Mei, Lin Li, Qing-Sheng Mi, Changlin Mei, Zheng Dong
Nephrotoxicity is a major adverse effect of cisplatin-mediated chemotherapy in cancer patients. The pathogenesis of cisplatin-induced nephrotoxicity remains largely unclear, making it difficult to design effective renoprotective approaches. Here, we have examined the role of microRNAs (miRNAs) in cisplatin-induced nephrotoxicity. We show that cisplatin nephrotoxicity was not affected by overall depletion of both beneficial and detrimental miRNAs from kidney proximal tubular cells in mice in which the miRNA-generating enzyme Dicer had been conditionally knocked out...
January 24, 2017: Journal of Biological Chemistry
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